Be prepared to be coerced, nagged, begged into a bible study, be prepared for her to be viewed as bad association for marrying ''outside the Lord'',
having a bible study will force you to make the decision to either get baptized or not,
and if you decide to not get baptized, you will be labled as a willful non-believer, and not worthy of their association.
basically, its a lose-lose situation...
try and get her out of it. if at all possible. you are doing both yourselves a huge life saving favour by doing so.